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This directory lists VNC implementations that ship a server, have a release within the last 24 months and provide official installation documentation. Each can run on infrastructure you control without a vendor-hosted service in the connection path. Viewer-only tools and projects whose maintainers state they are unmaintained are excluded.
Entries are alphabetical. “Not stated by vendor” means the project documentation does not state a value; it does not mean the capability is absent.
All five entries currently pass both filters, so selecting either requirement leaves the full list visible. Offline results include partial operation with the losses shown below. An absent or unstated requirement would appear only in the unfiltered list.
The open-source deployment values describe architecture: no vendor service sits in the connection or licensing path. SSO, audit logging, certifications and commercial support are information columns, with no sorting or filtering.
Select any values within a filter to include their matches. Entries must match every active filter. Clear all checkboxes to show every entry.
No entries match these filters. Clear checkboxes in a filter group to broaden the list.
| Name and release | On-premises / self-hosted | Air-gapped / offline | SSO | Audit logging | Compliance certifications | Commercial support | Operator provides |
|---|---|---|---|---|---|---|---|
RealVNC ConnectServer component
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Yes, Enterprise only, through the On-Prem Management Console. RealVNC On-Prem Management Console source (external site) | Partial. Enterprise offline licensing permits direct connections only. It loses cloud connectivity, the cloud Audit log, On-Demand Assist and Entra ID cloud SSO. RealVNC offline licensing source (external site); RealVNC Audit source (external site); RealVNC Connect source; RealVNC Server authentication source (external site) | Enterprise account SSO uses OIDC. Kerberos and Entra ID cloud SSO are Enterprise Server authentication schemes. On-Prem Management Console SSO: Not stated by vendor. RealVNC account SSO source (external site); RealVNC Server authentication source (external site); RealVNC On-Prem Management Console source (external site) | Partial. Cloud Audit covers cloud connections, exports CSV and via REST API, and retains 30 days. Direct connections are logged locally on each Server. On-Prem Management Console export: Not stated by vendor. RealVNC Audit source (external site); RealVNC On-Prem Management Console source (external site) | ISO/IEC 27001:2022; SOC 2 Type 2 report dated November 2025; Cyber Essentials. ISO/IEC 27001:2022 covers RealVNC’s own information security management system; the SOC 2 report covers its cloud service operations. Neither covers the product a customer installs. The SOC 2 package includes a HIPAA report; that is not a HIPAA certification of a customer deployment. RealVNC Trust Center (external site); accessed October 6, 2026. | Priority support on Enterprise. RealVNC Connect source | Provide account sign-in and separate Server authentication. For cloud connections, both endpoints need access to RealVNC cloud services. For direct connections, manage routing, firewalls and local logs. Reapply an Enterprise offline license to every Server at renewal. RealVNC Connect source; RealVNC offline licensing source (external site) |
TigerVNCServer component
Sources accessed October 5, 2026. |
Architecture: runs on operator-controlled hosts with no vendor service in the connection path. TigerVNC source | Architecture: no vendor service in the connection or licensing path. TigerVNC connection source; TigerVNC license source | Not stated by vendor TigerVNC source (external site) | Not stated by vendor TigerVNC source (external site) | Not stated by vendor TigerVNC source (external site) | Not stated by vendor TigerVNC source (external site) | Install upstream or distribution updates, configure firewalls and tunnels, and set a VNC password. Enable X.509 or Plain/PAM explicitly when needed. TigerVNC source |
TightVNCServer component
Sources accessed October 5, 2026. |
Architecture: runs on operator-controlled hosts with no vendor service in the connection path. TightVNC connection source | Architecture: no vendor service in the connection or licensing path. TightVNC connection source; TightVNC license source | Not stated by vendor TightVNC source (external site) | Not stated by vendor TightVNC source (external site) | Not stated by vendor TightVNC source (external site) | Not stated by vendor TightVNC source (external site) | Set Primary and View-only passwords, control exposure with a tunnel or trusted network, and install current releases. TightVNC source |
TurboVNCServer component
Sources accessed October 5, 2026. |
Architecture: runs on operator-controlled hosts with no vendor service in the connection path. TurboVNC source (external site) | Architecture: no vendor service in the connection or licensing path. TurboVNC source (external site) | Not stated by vendor TurboVNC source (external site) | Not stated by vendor TurboVNC source (external site) | Not stated by vendor TurboVNC source (external site) | Not stated by vendor TurboVNC source (external site) | Choose and configure security types and PAM authentication. Control exposure for each session port or bind to localhost for SSH tunneling. Update from GitHub Releases or the official YUM/APT repositories. TurboVNC source (external site) |
UltraVNCServer component
Sources accessed October 5, 2026. |
Architecture: runs on operator-controlled hosts with no vendor service in the connection path. UltraVNC connection source | Architecture: no vendor service in the connection or licensing path. UltraVNC connection source; UltraVNC license source | Not stated by vendor UltraVNC source (external site) | Not stated by vendor UltraVNC source (external site) | Not stated by vendor UltraVNC source (external site) | Not stated by vendor UltraVNC source (external site) | Configure a DSM plugin or tunnel, authentication and exposure controls. Keep any repeater reachable from both endpoints and apply updates from uvnc.com. UltraVNC source |
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